Shower stall



FIG. 1 is a front elevational view of a shower stall showing a first embodiment of my new design;

FIG. 2 is a front elevational view thereof with the shower doors in an open condition;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a top front perspective view of a second embodiment of a shower stall showing my new design, all other views being identical in appearance to those of the first embodiment; and,

FIG. 9 is a bottom front perspective view of a third embodiment of a shower stall showing my new design, all other views being identical in appearance to those of the first embodiment. 

The ornamental design for a shower stall, as shown and described. 